Examples with TreeItem org.eclipse.swt.widgets.TreeItem used on opensource projects

Example 86 with TreeItem

use of org.eclipse.swt.widgets.TreeItem in project eclipse.platform.swt by eclipse.

the class TreeTab method createExampleWidgets.

/**
 * Creates the "Example" widgets.
 */
@Override
void createExampleWidgets() {
    /* Compute the widget style */
    int style = getDefaultStyle();
    if (singleButton.getSelection())
        style |= SWT.SINGLE;
    if (multiButton.getSelection())
        style |= SWT.MULTI;
    if (horizontalButton.getSelection())
        style |= SWT.H_SCROLL;
    if (verticalButton.getSelection())
        style |= SWT.V_SCROLL;
    if (noScrollButton.getSelection())
        style |= SWT.NO_SCROLL;
    if (checkButton.getSelection())
        style |= SWT.CHECK;
    if (fullSelectionButton.getSelection())
        style |= SWT.FULL_SELECTION;
    if (borderButton.getSelection())
        style |= SWT.BORDER;
    /* Create the text tree */
    tree1 = new Tree(treeGroup, style);
    boolean multiColumn = multipleColumns.getSelection();
    if (multiColumn) {
        for (String columnTitle : columnTitles) {
            TreeColumn treeColumn = new TreeColumn(tree1, SWT.NONE);
            treeColumn.setText(columnTitle);
            treeColumn.setToolTipText(ControlExample.getResourceString("Tooltip", columnTitle));
        }
        tree1.setSortColumn(tree1.getColumn(0));
    }
    for (int i = 0; i < 4; i++) {
        TreeItem item = new TreeItem(tree1, SWT.NONE);
        setItemText(item, i, ControlExample.getResourceString("Node_" + (i + 1)));
        if (i < 3) {
            TreeItem subitem = new TreeItem(item, SWT.NONE);
            setItemText(subitem, i, ControlExample.getResourceString("Node_" + (i + 1) + "_1"));
        }
    }
    TreeItem[] treeRoots = tree1.getItems();
    TreeItem item = new TreeItem(treeRoots[1], SWT.NONE);
    setItemText(item, 1, ControlExample.getResourceString("Node_2_2"));
    item = new TreeItem(item, SWT.NONE);
    setItemText(item, 1, ControlExample.getResourceString("Node_2_2_1"));
    textNode1 = treeRoots[0];
    packColumns(tree1);
    try {
        TreeColumn column = tree1.getColumn(0);
        resizableColumns.setSelection(column.getResizable());
    } catch (IllegalArgumentException ex) {
    }
    /* Create the image tree */
    tree2 = new Tree(imageTreeGroup, style);
    Image image = instance.images[ControlExample.ciClosedFolder];
    if (multiColumn) {
        for (int i = 0; i < columnTitles.length; i++) {
            TreeColumn treeColumn = new TreeColumn(tree2, SWT.NONE);
            treeColumn.setText(columnTitles[i]);
            treeColumn.setToolTipText(ControlExample.getResourceString("Tooltip", columnTitles[i]));
            if (headerImagesButton.getSelection())
                treeColumn.setImage(instance.images[i % 3]);
        }
    }
    for (int i = 0; i < 4; i++) {
        item = new TreeItem(tree2, SWT.NONE);
        setItemText(item, i, ControlExample.getResourceString("Node_" + (i + 1)));
        if (multiColumn && subImagesButton.getSelection()) {
            for (int j = 0; j < columnTitles.length; j++) {
                item.setImage(j, image);
            }
        } else {
            item.setImage(image);
        }
        if (i < 3) {
            TreeItem subitem = new TreeItem(item, SWT.NONE);
            setItemText(subitem, i, ControlExample.getResourceString("Node_" + (i + 1) + "_1"));
            if (multiColumn && subImagesButton.getSelection()) {
                for (int j = 0; j < columnTitles.length; j++) {
                    subitem.setImage(j, image);
                }
            } else {
                subitem.setImage(image);
            }
        }
    }
    treeRoots = tree2.getItems();
    item = new TreeItem(treeRoots[1], SWT.NONE);
    setItemText(item, 1, ControlExample.getResourceString("Node_2_2"));
    if (multiColumn && subImagesButton.getSelection()) {
        for (int j = 0; j < columnTitles.length; j++) {
            item.setImage(j, image);
        }
    } else {
        item.setImage(image);
    }
    item = new TreeItem(item, SWT.NONE);
    setItemText(item, 1, ControlExample.getResourceString("Node_2_2_1"));
    if (multiColumn && subImagesButton.getSelection()) {
        for (int j = 0; j < columnTitles.length; j++) {
            item.setImage(j, image);
        }
    } else {
        item.setImage(image);
    }
    imageNode1 = treeRoots[0];
    packColumns(tree2);
}

Example 87 with TreeItem

use of org.eclipse.swt.widgets.TreeItem in project eclipse.platform.swt by eclipse.

the class TreeTab method parameterForType.

@Override
Object[] parameterForType(String typeName, String value, Widget widget) {
    if (typeName.equals("org.eclipse.swt.widgets.TreeItem")) {
        TreeItem item = findItem(value, ((Tree) widget).getItems());
        if (item != null)
            return new Object[] { item };
    }
    if (typeName.equals("[Lorg.eclipse.swt.widgets.TreeItem;")) {
        String[] values = split(value, ',');
        TreeItem[] items = new TreeItem[values.length];
        for (int i = 0; i < values.length; i++) {
            TreeItem item = findItem(values[i], ((Tree) widget).getItems());
            if (item == null)
                break;
            items[i] = item;
        }
        return new Object[] { items };
    }
    return super.parameterForType(typeName, value, widget);
}

Example 88 with TreeItem

use of org.eclipse.swt.widgets.TreeItem in project eclipse.platform.swt by eclipse.

the class DNDExample method createDragSource.

private void createDragSource() {
    if (dragSource != null)
        dragSource.dispose();
    dragSource = new DragSource(dragControl, dragOperation);
    dragSource.setTransfer(dragTypes);
    dragSource.addDragListener(new DragSourceListener() {

        @Override
        public void dragFinished(org.eclipse.swt.dnd.DragSourceEvent event) {
            dragConsole.append(">>dragFinished\n");
            printEvent(event);
            dragDataText = dragDataRTF = dragDataHTML = dragDataURL = null;
            dragDataFiles = null;
            if (event.detail == DND.DROP_MOVE) {
                switch(dragControlType) {
                    case BUTTON_CHECK:
                    case BUTTON_TOGGLE:
                    case BUTTON_RADIO:
                        {
                            Button b = (Button) dragControl;
                            b.setText("");
                            break;
                        }
                    case STYLED_TEXT:
                        {
                            StyledText text = (StyledText) dragControl;
                            text.insert("");
                            break;
                        }
                    case TABLE:
                        {
                            Table table = (Table) dragControl;
                            TableItem[] items = table.getSelection();
                            for (TableItem item : items) {
                                item.dispose();
                            }
                            break;
                        }
                    case TEXT:
                        {
                            Text text = (Text) dragControl;
                            text.insert("");
                            break;
                        }
                    case TREE:
                        {
                            Tree tree = (Tree) dragControl;
                            TreeItem[] items = tree.getSelection();
                            for (TreeItem item : items) {
                                item.dispose();
                            }
                            break;
                        }
                    case CANVAS:
                        {
                            dragControl.setData("STRINGS", null);
                            dragControl.redraw();
                            break;
                        }
                    case LABEL:
                        {
                            Label label = (Label) dragControl;
                            label.setText("");
                            break;
                        }
                    case LIST:
                        {
                            List list = (List) dragControl;
                            int[] indices = list.getSelectionIndices();
                            list.remove(indices);
                            break;
                        }
                    case COMBO:
                        {
                            Combo combo = (Combo) dragControl;
                            combo.setText("");
                            break;
                        }
                }
            }
        }

        @Override
        public void dragSetData(org.eclipse.swt.dnd.DragSourceEvent event) {
            dragConsole.append(">>dragSetData\n");
            printEvent(event);
            if (TextTransfer.getInstance().isSupportedType(event.dataType)) {
                event.data = dragDataText;
            }
            if (RTFTransfer.getInstance().isSupportedType(event.dataType)) {
                event.data = dragDataRTF;
            }
            if (HTMLTransfer.getInstance().isSupportedType(event.dataType)) {
                event.data = dragDataHTML;
            }
            if (URLTransfer.getInstance().isSupportedType(event.dataType)) {
                event.data = dragDataURL;
            }
            if (FileTransfer.getInstance().isSupportedType(event.dataType)) {
                event.data = dragDataFiles;
            }
        }

        @Override
        public void dragStart(org.eclipse.swt.dnd.DragSourceEvent event) {
            dragConsole.append(">>dragStart\n");
            printEvent(event);
            dragDataFiles = fileList.getItems();
            switch(dragControlType) {
                case BUTTON_CHECK:
                case BUTTON_TOGGLE:
                case BUTTON_RADIO:
                    {
                        Button b = (Button) dragControl;
                        dragDataText = b.getSelection() ? "true" : "false";
                        break;
                    }
                case STYLED_TEXT:
                    {
                        StyledText text = (StyledText) dragControl;
                        String s = text.getSelectionText();
                        if (s.length() == 0) {
                            event.doit = false;
                        } else {
                            dragDataText = s;
                        }
                        break;
                    }
                case TABLE:
                    {
                        Table table = (Table) dragControl;
                        TableItem[] items = table.getSelection();
                        if (items.length == 0) {
                            event.doit = false;
                        } else {
                            StringBuilder buffer = new StringBuilder();
                            for (int i = 0; i < items.length; i++) {
                                buffer.append(items[i].getText());
                                if (items.length > 1 && i < items.length - 1) {
                                    buffer.append("\n");
                                }
                            }
                            dragDataText = buffer.toString();
                        }
                        break;
                    }
                case TEXT:
                    {
                        Text text = (Text) dragControl;
                        String s = text.getSelectionText();
                        if (s.length() == 0) {
                            event.doit = false;
                        } else {
                            dragDataText = s;
                        }
                        break;
                    }
                case TREE:
                    {
                        Tree tree = (Tree) dragControl;
                        TreeItem[] items = tree.getSelection();
                        if (items.length == 0) {
                            event.doit = false;
                        } else {
                            StringBuilder buffer = new StringBuilder();
                            for (int i = 0; i < items.length; i++) {
                                buffer.append(items[i].getText());
                                if (items.length > 1 && i < items.length - 1) {
                                    buffer.append("\n");
                                }
                            }
                            dragDataText = buffer.toString();
                        }
                        break;
                    }
                case CANVAS:
                    {
                        String[] strings = (String[]) dragControl.getData("STRINGS");
                        if (strings == null || strings.length == 0) {
                            event.doit = false;
                        } else {
                            StringBuilder buffer = new StringBuilder();
                            for (int i = 0; i < strings.length; i++) {
                                buffer.append(strings[i]);
                                if (strings.length > 1 && i < strings.length - 1) {
                                    buffer.append("\n");
                                }
                            }
                            dragDataText = buffer.toString();
                        }
                        break;
                    }
                case LABEL:
                    {
                        Label label = (Label) dragControl;
                        String string = label.getText();
                        if (string.length() == 0) {
                            event.doit = false;
                        } else {
                            dragDataText = string;
                        }
                        break;
                    }
                case LIST:
                    {
                        List list = (List) dragControl;
                        String[] selection = list.getSelection();
                        if (selection.length == 0) {
                            event.doit = false;
                        } else {
                            StringBuilder buffer = new StringBuilder();
                            for (int i = 0; i < selection.length; i++) {
                                buffer.append(selection[i]);
                                if (selection.length > 1 && i < selection.length - 1) {
                                    buffer.append("\n");
                                }
                            }
                            dragDataText = buffer.toString();
                        }
                        break;
                    }
                case COMBO:
                    {
                        Combo combo = (Combo) dragControl;
                        String string = combo.getText();
                        Point selection = combo.getSelection();
                        if (selection.x == selection.y) {
                            event.doit = false;
                        } else {
                            dragDataText = string.substring(selection.x, selection.y);
                        }
                        break;
                    }
                default:
                    throw new SWTError(SWT.ERROR_NOT_IMPLEMENTED);
            }
            if (dragDataText != null) {
                dragDataRTF = "{\\rtf1{\\colortbl;\\red255\\green0\\blue0;}\\cf1\\b " + dragDataText + "}";
                dragDataHTML = "<b>" + dragDataText + "</b>";
                dragDataURL = "http://" + dragDataText.replace(' ', '.');
                try {
                    new URL(dragDataURL);
                } catch (MalformedURLException e) {
                    dragDataURL = null;
                }
            }
            for (Transfer dragType : dragTypes) {
                if (dragType instanceof TextTransfer && dragDataText == null) {
                    event.doit = false;
                }
                if (dragType instanceof RTFTransfer && dragDataRTF == null) {
                    event.doit = false;
                }
                if (dragType instanceof HTMLTransfer && dragDataHTML == null) {
                    event.doit = false;
                }
                if (dragType instanceof URLTransfer && dragDataURL == null) {
                    event.doit = false;
                }
                if (dragType instanceof FileTransfer && (dragDataFiles == null || dragDataFiles.length == 0)) {
                    event.doit = false;
                }
            }
        }
    });
}

Example 89 with TreeItem

use of org.eclipse.swt.widgets.TreeItem in project eclipse.platform.swt by eclipse.

the class FileViewer method notifySelectedDirectory.

/**
 * Notifies the application components that a new current directory has been selected
 *
 * @param dir the directory that was selected, null is ignored
 */
void notifySelectedDirectory(File dir) {
    if (dir == null)
        return;
    if (currentDirectory != null && dir.equals(currentDirectory))
        return;
    currentDirectory = dir;
    notifySelectedFiles(null);
    /* Shell:
		 * Sets the title to indicate the selected directory
		 */
    shell.setText(getResourceString("Title", new Object[] { currentDirectory.getPath() }));
    /* Table view:
		 * Displays the contents of the selected directory.
		 */
    workerUpdate(dir, false);
    /* Combo view:
		 * Sets the combo box to point to the selected directory.
		 */
    final File[] comboRoots = (File[]) combo.getData(COMBODATA_ROOTS);
    int comboEntry = -1;
    if (comboRoots != null) {
        for (int i = 0; i < comboRoots.length; ++i) {
            if (dir.equals(comboRoots[i])) {
                comboEntry = i;
                break;
            }
        }
    }
    if (comboEntry == -1)
        combo.setText(dir.getPath());
    else
        combo.select(comboEntry);
    /* Tree view:
		 * If not already expanded, recursively expands the parents of the specified
		 * directory until it is visible.
		 */
    List<File> path = new ArrayList<>();
    // Build a stack of paths from the root of the tree
    while (dir != null) {
        path.add(dir);
        dir = dir.getParentFile();
    }
    // Recursively expand the tree to get to the specified directory
    TreeItem[] items = tree.getItems();
    TreeItem lastItem = null;
    for (int i = path.size() - 1; i >= 0; --i) {
        final File pathElement = path.get(i);
        // Search for a particular File in the array of tree items
        // No guarantee that the items are sorted in any recognizable fashion, so we'll
        // just sequential scan.  There shouldn't be more than a few thousand entries.
        TreeItem item = null;
        for (TreeItem currentItem : items) {
            item = currentItem;
            if (item.isDisposed())
                continue;
            final File itemFile = (File) item.getData(TREEITEMDATA_FILE);
            if (itemFile != null && itemFile.equals(pathElement))
                break;
        }
        if (item == null)
            break;
        lastItem = item;
        if (i != 0 && !item.getExpanded()) {
            treeExpandItem(item);
            item.setExpanded(true);
        }
        items = item.getItems();
    }
    tree.setSelection((lastItem != null) ? new TreeItem[] { lastItem } : new TreeItem[0]);
}

Example 90 with TreeItem

use of org.eclipse.swt.widgets.TreeItem in project eclipse.platform.swt by eclipse.

the class FileViewer method createTreeView.

/**
 * Creates the file tree view.
 *
 * @param parent the parent control
 */
private void createTreeView(Composite parent) {
    Composite composite = new Composite(parent, SWT.NONE);
    GridLayout gridLayout = new GridLayout();
    gridLayout.numColumns = 1;
    gridLayout.marginHeight = gridLayout.marginWidth = 2;
    gridLayout.horizontalSpacing = gridLayout.verticalSpacing = 0;
    composite.setLayout(gridLayout);
    treeScopeLabel = new Label(composite, SWT.BORDER);
    treeScopeLabel.setText(FileViewer.getResourceString("details.AllFolders.text"));
    treeScopeLabel.setLayoutData(new GridData(GridData.FILL_HORIZONTAL | GridData.VERTICAL_ALIGN_FILL));
    tree = new Tree(composite, SWT.BORDER | SWT.V_SCROLL | SWT.H_SCROLL | SWT.SINGLE);
    tree.setLayoutData(new GridData(GridData.FILL_HORIZONTAL | GridData.FILL_VERTICAL));
    tree.addSelectionListener(new SelectionListener() {

        @Override
        public void widgetSelected(SelectionEvent event) {
            final TreeItem[] selection = tree.getSelection();
            if (selection != null && selection.length != 0) {
                TreeItem item = selection[0];
                File file = (File) item.getData(TREEITEMDATA_FILE);
                notifySelectedDirectory(file);
            }
        }

        @Override
        public void widgetDefaultSelected(SelectionEvent event) {
            final TreeItem[] selection = tree.getSelection();
            if (selection != null && selection.length != 0) {
                TreeItem item = selection[0];
                item.setExpanded(true);
                treeExpandItem(item);
            }
        }
    });
    tree.addTreeListener(new TreeAdapter() {

        @Override
        public void treeExpanded(TreeEvent event) {
            final TreeItem item = (TreeItem) event.item;
            final Image image = (Image) item.getData(TREEITEMDATA_IMAGEEXPANDED);
            if (image != null)
                item.setImage(image);
            treeExpandItem(item);
        }

        @Override
        public void treeCollapsed(TreeEvent event) {
            final TreeItem item = (TreeItem) event.item;
            final Image image = (Image) item.getData(TREEITEMDATA_IMAGECOLLAPSED);
            if (image != null)
                item.setImage(image);
        }
    });
    createTreeDragSource(tree);
    createTreeDropTarget(tree);
}